package operation;

import book.BookList;

public class ExitOperation implements IOperation{
    public void work(BookList bookList) {
        System.out.println("退出系统....");
        int currentSize= bookList.getUsedSize();
        for(int i=0;i<currentSize;i++) {
            bookList.setBook(i,null);
        }

        System.exit(0);
    }
}
